//using the logical OR operator
#include <iostream>
int main()
{
    using namespace std;
    cout << "This program may reformat your hard disk\n"
            "and destory all your data.\n"
            "Do you wish to continue? <y/n>";
    char ch;
    cin >> ch;
    if ( ch == 'y' || ch == 'Y')
        cout << "You were warned! \a\a\n";
    else if (ch == 'n' || ch == 'N')
        cout << "A wise choice ... bye\n";
    else
        cout << "That wasn't a y or n ! Apparently you "
                "can't follow \ninstructions , so "
                "I'll trash your disk anyway.\a\a\n";
    return 0 ;
}
